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Date: Fri, 17 Sep 2004 16:55:26 -0700 (PDT)
From: [unknown]
To: jonathan.r.wagner@mail.utexas.edu, phylocode@ouvaxa.cats.ohiou.ed=
Subject: Re: PROPOSED ARTICLE X - autonyms
Jon Wagner (jonathan.r.wagner@mail.utexas.edu) wrote: <I wholeheartedly agree with Dr. de Queiroz that the issue of allowin= g two names for a clade MUST be addressed before any rules are considered o= r adopted. This was my gravest concern about the Cannatella proposal. M= y modification of that proposal does nothing to solve this, other than removing panstems from the class of "regular taxon names."> As I read it, there are two different clades being referrenced here= , not one, as Mike Keesey pointed out. The conflict of two names for the sa= me thing doesn't occur, since one can be considered a slightly different "class" of name than the other, for different purposes ... like how stratigraphy pulls its hair out when people mix up the placement of t= he geological column with the temporal relationships within the column, = i.e., Late with Upper, Early with Lower, etc. They can relate to the same a= rea, we can talk about the upper Maastrichtian as much as the late Maastrichtian, and they may even use the same "specifiers," but they = are indeed distinct. Synapsida as a pan-stem, and use of the "Pan-Mammalia" name should = not be considered conflicting since while they reference the same clade, = they do so differently, and as Mike pointed out, their pan-stem "definitio= ns" can be modified to fit their actual flavor. The pan-stem definitions = can have external specifiers of each other major excluded group one choos= es to recognize, keeping in mind that defining Diapsida as exclusive of tur= tles can be self-destructive of Diapsida's use. Cheers, =3D=3D=3D=3D=3D Jaime A. Headden Little steps are often the hardest to take. We are too used to mak= ing leaps in the face of adversity, that a simple skip is so hard to = do. We should all learn to walk soft, walk small, see the world arou= nd us rather than zoom by it. "Innocent, unbiased observation is a myth." --- P.B. Medawar (1969) =09=09 _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com